raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:93360

Spondyloepimetaphyseal dysplasia with joint laxity, leptodactylic type

Synonyms: SEMD-MD · SEMDJL2 · Spondyloepimetaphyseal dysplasia with joint laxicity, Hall type · Spondyloepimetaphyseal dysplasia with joint laxity type 2 · Spondyloepimetaphyseal dysplasia with multiple dislocations, Hall type

Type
Disease
Group
Disorder
Inheritance
Autosomal dominant
Age of onset
Infancy, Neonatal
Status
active

Spondyloepimetaphyseal dysplasia with multiple dislocations is a rare genetic primary bone dysplasia disorder characterized by midface hypoplasia, short stature, generalized joint laxity, multiple joint dislocations (most frequently of knees and hips), limb malalignment (genu valgum/varum) and progressive spinal deformity (e.g. kyphosis/scoliosis). Radiography reveals distinctive slender metacarpals and metatarsals, as well as small, irregular epiphyses, metaphyseal irregularities with vertical striations, constricted femoral necks and mild platyspondyly, among others.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enSpondyloepimetaphyseal dysplasia with joint laxity, leptodactylic typeSEMD-MD · SEMDJL2 · Spondyloepimetaphyseal dysplasia with joint laxicity, Hall type · Spondyloepimetaphyseal dysplasia with joint laxity type 2 · Spondyloepimetaphyseal dysplasia with multiple dislocations, Hall type
frDysplasie spondylo-épimétaphysaire avec hyperlaxité ligamentaire type leptodactyliqueDysplasie spondylo-épimétaphysaire avec dislocations multiples, type Hall · Dysplasie spondylo-épimétaphysaire avec hyperlaxité ligamentaire type 2 · Dysplasie spondylo-épimétaphysaire avec hyperlaxité ligamentaire type Hall · Dysplasie spondylo-épimétaphysaire avec luxations multiples · Dysplasie spondylo-épimétaphysaire avec luxations multiples type leptodactylique · SEMD-MD · SEMDJL2
deDysplasie, spondyloepimetaphysäre, mit multiplen Luxationen, leptodaktyler TypDysplasie, spondyloepimetaphysäre, mit multiplen Luxationen, leptodaktyler Typ · SEMD-MD · SEMDJL2 · Spondyloepimetaphysäre Dysplasie mit multiplen Luxationen vom Typ Hall · Spondyloepimetaphysäre Dysplasie mit Überstreckbarkeit der Gelenke Typ 2 · Spondyloepimetaphysäre Dysplasie mit Überstreckbarkeit der Gelenke Typ Hall
esDisplasia espondiloepimetafisaria con laxitud articular tipo leptodactiliaSEMDJL2 · Displasia espondiloepimetafisaria con laxitud articular tipo 2 · Displasia espondiloepimetafisaria con laxitud articular tipo Hall · Displasia espondiloepimetafisaria con luxaciones múltiples tipo Hall · SEMD-MD
itDisplasia spondiloepimetafisaria con lassit articolare, tipo leptodattilico'Displasia spondiloepimetafisaria con lassità articolare, tipo 2' · 'Displasia spondiloepimetafisaria con lassità articolare, tipo Hall' · Displasia spondiloepimetafisaria con dislocazioni multiple, tipo Hall · Displasia spondiloepimetafisaria con lassit articolare, tipo 2 · Displasia spondiloepimetafisaria con lassit articolare, tipo Hall · Displasia spondiloepimetafisaria con lassità articolare, tipo 2 · Displasia spondiloepimetafisaria con lassità articolare, tipo Hall · Displasia spondiloepimetafisaria con lassità articolare, tipo leptodattilico · SEMD-MD · SEMDJL2
nlSpondylo-epimetafysaire dysplasie met gewrichtslaxiteit, leptodactylie-typeSEMD-MD · SEMDJL2 · Spondylo-epimetafysaire dysplasie met gewrichtslaxiteit type 2 · Spondylo-epimetafysaire dysplasie met gewrichtslaxiteit, Hall-type
ptDisplasia espondiloepimetafisária com hipermobilidade articular, tipo leptodactiliaDisplasia espondiloepimetafisiária com luxações múltiplas, tipo Hall · Displasia espondiloepimetafisária com hipermobilidade articular tipo 2 · Displasia espondiloepimetafisária com hipermobilidade articular, tipo Hall · SEMD-MD · SEMDJL2
plDysplazja kręgowo-nasadowo-przynasadowa z wielokrotnymi przemieszczeniamiDysplazja kręgowo-nasadowo-przynasadowa z wielokrotnymi przemieszczeniami, typ Hall · Dysplazja kręgowo-nasadowo-przynasadowa z wiotkością stawów typu 2 · Dysplazja kręgowo-nasadowo-przynasadowa z wiotkością stawów typu, typ Hall · SEMDJL2 · SEMD-MD · Dysplazja kręgowo-nasadowo-przynasadowa z wiotkością stawów, ze smukłymi palcami
csSpondyloepimetafyzární dysplázie s mnohočetnými dislokacemiSEMD-MD · SEMDJL2 · Spondyloepimetafyzární dysplázie se zvýšenou volností kloubů, Hallův typ · Spondyloepimetafyzární dysplázie se zvýšenou volností kloubů, typ 2 · Spondyloepimetafyzární dysplázie se zvýšenou volností kloubů, leptodaktylní typ · Spondyloepimetafyzární dysplázie s mnohočetnými dislokacemi, Hallův typ
ukСпондилоепіметафізарна дисплазія з розхитаністю суглобів, лептодактилійний (жабячий) типSEMDJL2 · SEMD-MD · Спондилоепіметафізарна дисплазія з розхитаністю суглобів, тип Холла · Спондилоепіметафізарна дисплазія з розхитаністю суглобів 2 типу · Спондилоепіметафізарна дисплазія з множинними вивихами, тип Холла
zh脊椎干骺端发育不良伴多发性脱位脊椎干骺端发育不良伴多发性脱位,Hall型
trÇoklu çıkıklar ile seyreden spondiloepimetafizyal displaziSEMD-MD · SEMDJL2 · Eklem gevşekliği tip 2 ile seyreden spondiloepimetafizyal displazi · Eklem gevşekliği ile seyreden spondiloepimetafizyal displazi, Hall tipi · Eklem gevşekliği ile seyreden spondiloepimetafizyal displazi, leptodaktilik tip · çoklu çıkıklar ile seyreden spondiloepimetafizyal displazi, Hall tipi

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM603546Evalidated
ICD-10Q77.7NTBTattributedvalidated
ICD-11LD24.3NTBTindexvalidated
MONDO0011335Evalidated
MONDO11335Evalidated
MeSHC535784Evalidated
UMLSC1863732Evalidated
GARD9866Evalidated

E exact · NTBT this ORPHAcode is narrower than the target · BTNT broader than the target · ND not decided.

3

Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (2):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
KIF22Disease-causing germline mutation(s) inAssessedHGNC:6391ENSG0000007961660321316p11.2kinesin family member 2222152677[PMID]
5

Prevalence and incidence

1 record
TypeClassValueAreaQualificationValidationSource
Point prevalence<1 / 1 000 000—EuropeClass onlyNot yet validatedORPHANET

Value is Orphadata's ValMoy: the mean estimate per 100 000 for prevalence and incidence, the number of cases or families for case reports.

6

HPO phenotypes

41 annotations · validated 2021-07-09
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0002656Epiphyseal dysplasia
HP:0001382Joint hypermobility
HP:0011800Midface retrusion
HP:0004322Short stature
HP:0002652Skeletal dysplasia
Frequent (79-30%)
HP:0001832Abnormal metatarsal morphology
HP:0040064Abnormality of limbs
HP:0010674Abnormality of the curvature of the vertebral column
HP:0006014Abnormally shaped carpal bones
HP:0009815Aplasia/hypoplasia of the extremities
HP:0002663Delayed epiphyseal ossification
HP:0012368Flat face
HP:0100168Fragmented epiphyses
HP:0002761Generalized joint hypermobility
HP:0002857Genu valgum
HP:0002970Genu varum
HP:0001602Laryngeal stenosis
HP:0008755Laryngotracheomalacia
HP:0003025Metaphyseal irregularity
HP:0031367Metaphyseal striations
HP:0012095Multiple joint dislocation
HP:0008857Neonatal short-trunk short stature
HP:0000926Platyspondyly
HP:0003088Premature osteoarthritis
HP:0001238Slender finger
HP:0006236Slender metacarpals
HP:0001518Small for gestational age
HP:0002651Spondyloepimetaphyseal dysplasia
Occasional (29-5%)
HP:0006536Airway obstruction
HP:0002987Elbow flexion contracture
HP:0003370Flat capital femoral epiphysis
HP:0002827Hip dislocation
HP:0030043Hip subluxation
HP:0002751Kyphoscoliosis
HP:0002808Kyphosis
HP:0004875Neonatal inspiratory stridor
HP:0003048Radial head subluxation
HP:0002650Scoliosis
HP:0001250Seizure
HP:0000486Strabismus
HP:0005619Thoracolumbar kyphosis

Run the differential on the 5 obligate / very frequent terms

Annotation source: 22152677[PMID]_22152678[PMID]

7

Sources for this card